ERAC ERAC Energy Data Analytics & Reporting

Question 1

Which key performance indicator (KPI) measures the ratio of useful energy output to total energy input in a facility?

Accepted Answer

Energy Utilization Index (EUI)

Answer

The Energy Utilization Index (EUI) measures energy consumption per square foot per year and is a primary KPI for benchmarking building energy performance.

Question 2

In energy data analytics, what does an M&V (Measurement & Verification) protocol primarily confirm?

Accepted Answer

Actual energy savings achieved from efficiency measures

Answer

M&V protocols, such as those outlined in IPMVP, confirm that energy savings from efficiency measures are real and quantifiable.

Question 3

Which regression analysis technique is most commonly used to establish an energy baseline from historical consumption data?

Accepted Answer

Ordinary least squares (OLS) linear regression

Answer

Ordinary least squares (OLS) linear regression is the standard technique for developing energy baselines that correlate consumption with independent variables like degree days.

Question 4

What is the primary purpose of an energy dashboard in a continuous monitoring system?

Accepted Answer

To provide real-time visualization of energy consumption and anomalies

Answer

An energy dashboard provides real-time or near-real-time visualization of consumption data, enabling operators to detect anomalies and identify savings opportunities.

Question 5

When normalizing energy data for weather, which variable is most commonly used for heating energy analysis?

Accepted Answer

Heating Degree Days (HDD)

Answer

Heating Degree Days (HDD) normalize energy consumption data for heating systems by quantifying how cold the weather was relative to a base temperature (typically 65°F).

(ERAC) Energy Risk Auditor Certification Practice Test

(ERAC) Energy Risk Auditor Certification Practice Test

ERAC ERAC Energy Data Analytics & Reporting